WO2017208514A1 - Procédé de transfert et dispositif de transfert de groupe de coffrages - Google Patents

Procédé de transfert et dispositif de transfert de groupe de coffrages Download PDF

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Publication number
WO2017208514A1
WO2017208514A1 PCT/JP2017/005662 JP2017005662W WO2017208514A1 WO 2017208514 A1 WO2017208514 A1 WO 2017208514A1 JP 2017005662 W JP2017005662 W JP 2017005662W WO 2017208514 A1 WO2017208514 A1 WO 2017208514A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
cylinder
formwork
cushion
group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2017/005662
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English (en)
Japanese (ja)
Inventor
公一 金藤
大野　泰嗣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to CN201780003423.0A priority Critical patent/CN108136489A/zh
Publication of WO2017208514A1 publication Critical patent/WO2017208514A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C23/00—Tools; Devices not mentioned before for moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C25/00—Foundry moulding plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D33/00—Equipment for handling moulds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke

Definitions

  • the present invention relates to a conveyance method and a conveyance device for a mold group in which mold groups arranged in series are sandwiched between a pusher cylinder and a cushion cylinder and intermittently conveyed by a pitch corresponding to one mold frame or a plurality of mold frames. More specifically, the present invention relates to a method and apparatus for transporting a form group that can keep a gap between the formwork constant even when the formwork is thermally expanded.
  • Patent Document 1 In a casting facility using a mold, as shown in Patent Document 1 and Patent Document 2, a group of molds arranged in series is sandwiched between a pusher cylinder and a cushion cylinder, and one mold frame or a plurality of mold frames Intermittent conveyance is performed by pitches of minutes.
  • Patent Document 1 describes a method of conveying a group of molds arranged in series between a hydraulic pusher cylinder and a hydraulic cushion cylinder using a hydraulic cylinder in a group of molds that are intermittently conveyed by a pitch of one mold frame. Yes.
  • this transfer method when transfer is performed with a gap between the hydraulic pusher cylinder, the mold, and the hydraulic cushion cylinder, the hydraulic pusher cylinder is operated at a low speed while the cushion cylinder having the gap does not move.
  • the hydraulic pusher cylinder is operated at a high speed, and a switch for detecting the position to decelerate during the high-speed transfer is attached to the pusher.
  • Patent Document 2 also describes a method of transporting a formwork group using a hydraulic cylinder in which formwork groups arranged in series are sandwiched between a hydraulic pusher cylinder and a hydraulic cushion cylinder, and intermittently transported by a pitch of one formwork. .
  • this transfer method when transfer is performed with a gap between the hydraulic pusher cylinder, the mold, and the hydraulic cushion cylinder, the hydraulic pusher cylinder is operated at a low speed while the cushion cylinder having the gap does not move.
  • the point that the hydraulic pusher cylinder is operated at a high speed after the cushion cylinder is pushed by the formwork and retreats is the same as in Patent Document 1, but the switch for detecting the position to decelerate during the high-speed conveyance is set on the cushion side. By mounting, it is characterized by keeping the deceleration distance constant without being affected by the thermal expansion of the formwork.
  • both Patent Documents 1 and 2 have a problem of being affected by the fluctuation of the gap between the molds due to the thermal expansion of the molds because the fixed stroke cylinders are used as the hydraulic pusher cylinder and the hydraulic cushion cylinder. That is, during the operation of the equipment, the molds become hot and thermally expand, so the gap between the molds is minimized, and the low-speed time for gap clearance can be minimized. Due to the low temperature of the frame, the gap between the molds is maximized, and the slowing time for gap clearance is also maximized. In some cases, it is difficult to operate the equipment in a predetermined process time.
  • the formwork with the largest gap between the formwork is adjusted so that it can be operated in a predetermined process time immediately after the operation of the low-temperature equipment is started. Since the process time when the mold with the smallest gap becomes high temperature becomes faster than the predetermined process time, there is a problem that the wear of the equipment due to high-speed operation is accelerated.
  • the object of the present invention is to secure the clearance time immediately after the start of operation of the equipment having a maximum clearance at a low temperature, without reducing the operation time of each actuator (cylinder) more than necessary.
  • the mold is not affected by the thermal expansion of the mold. It is an object of the present invention to provide a method and apparatus for conveying a form group that can keep a gap between frames constant.
  • the method for conveying a form group of the present invention is such that a form group arranged in series is sandwiched between a pusher cylinder and a cushion cylinder, and a pitch corresponding to one mold form or a plurality of mold forms is obtained.
  • an electric cylinder or hydraulic cylinder that can arbitrarily change the stop position on the extended end side as the cushion cylinder and has an expansion / contraction position recognition function and a midway stop function Is used to absorb the thermal expansion of the formwork.
  • the “extension end side” refers to a state in which the cushion cylinder extends the cylinder.
  • the cushion cylinder's effective stop position at the end of transfer is recognized and stored by the expansion / contraction position recognition function, and then stored in the next cycle transfer process.
  • the gap between the molds can be kept constant.
  • Effective end side refers to the state of the cushion cylinder when the formwork is conveyed by the pusher cylinder
  • return end refers to the cushion to be returned after one cycle of conveying the formwork by the pusher cylinder is completed. Refers to the tip of the cylinder.
  • the present invention provides a form group group conveying device in which a series of form group groups are sandwiched between a pusher cylinder and a cushion cylinder, so that one mold frame or a plurality of mold frames are divided.
  • the stop position on the extended end side can be arbitrarily changed as the cushion cylinder, and an electric cylinder with an expansion / contraction position recognition function and a midway stop function or A hydraulic cylinder is provided to absorb thermal expansion of the formwork.
  • an encoder or a linear scale can be used as a means for expressing the expansion / contraction position recognition function.
  • the mold has a clamping device that holds a mold upstream one frame of the mold transfer device on the cushion cylinder side where the stop position is not fixed due to thermal expansion at an arbitrary stop position, and is on the carriage of the mold transfer device on the cushion cylinder side. Therefore, it is possible to provide a positioning apparatus for positioning the mold by sandwiching a part of the mold carriage on which the mold is placed, in order to send the unsatisfactory mold located at a predetermined position on the carriage.
  • the gap between the molds can be made constant without being affected by thermal expansion, and a stable operation time can be secured without unnecessarily increasing the operation time of each actuator. It becomes possible.
  • FIG. 2 is a plan view showing the structure of the present invention (in the direction of arrows AA in FIG. 1). It is a top view (BB arrow of FIG. 1) which shows the structure of this invention. It is a front view which shows the apparatus structure by the side of the pusher of this invention. It is a front view which shows the apparatus structure by the side of the cushion of this invention (form feed state figure 1).
  • FIG. 3 is a cross-sectional view of the cushion-side formwork carriage positioning device of the present invention when opened (as viewed from the arrow CC in FIG. 1).
  • FIGS. 11 and 12 a form feed of a conventional structure will be described with reference to FIGS.
  • the mold 101 is placed on a mold bogie 102 having a longer dimension than the mold 101 and conveyed.
  • the conveyance form group 103 arranged in series is conveyed in a state where the form carriages 102 are in contact with each other.
  • Traversers 106 and 107 for carrying in and out the mold 101 one by one in the perpendicular direction are arranged on the carry-in side 104 and the carry-out side 105 of the transport mold group 103 arranged in series.
  • a pusher is used to push the mold 101 on the carry-in traverser 106 downstream by one frame, and to place the leading mold 109 of the transport mold group 103 staying on the fixed rail 108 on the carry-out traverser 107.
  • a pusher device 110 that is a cylinder and a cushion device 111 that is a cushion cylinder are arranged opposite to the outside of the conveyance mold group 103.
  • Each of the traversers 106 and 107 to be loaded / unloaded has a mold carriage holding means 112 for positioning the mold 101 to be loaded, and on the downstream side of the carry-in traverser 106, derailment due to reverse running of the mold 101 is prevented.
  • a derailment prevention stopper 113 is provided (see FIGS. 11 and 12). The derailment prevention stopper 113 is lowered when the pusher device 110 feeds one frame 101, and is raised by a one-frame feed completion signal of the pusher device 110 to prevent reverse movement of the mold 101 (see FIG. 12).
  • the standard for feeding the mold 101 by the pusher device 110 is, for example, the mold 114 carried out from the carry-in traverser 106 (see FIG. 12). If there is a mold 101 that is desired to be accurately stopped at a predetermined stop position in the intermediate portion of the conveying mold group 103 staying on the fixed rail 108, the mold 101 may be used as a feed reference.
  • the “feeding reference” is a form serving as a reference for the moving distance when the pusher device 110 sends the form 101.
  • the return end of the cylinder head 115 of the pusher device 110 and the carry-in traverser 106 are A gap a is provided between the molds 101, and a gap b is provided between the mold 101 on the carry-in side traverser 106 and the mold 114 used as a reference for transporting from the carry-in traverser 106 (see FIG. 12).
  • the “return end” refers to a position where a pusher cylinder (a pusher device) or the like has returned after being extended for feeding a formwork.
  • the cushion device 111 side stays on the fixed rail 108 in order to carry out the mold 101 loaded on the carry-out side traverser 107 from between the transfer mold group 103 arranged in series and the cushion device 111.
  • a gap d is provided between the leading mold 109 of the conveying mold group 103 and the mold 101 on the carry-out traverser 107, and the effective end of the mold 101 on the carry-out traverser 107 and the cylinder head 116 of the cushion device 111 is provided.
  • a gap e is provided between them (see FIG. 16).
  • the installation pitch of the carry-in traverser 106 and the carry-out traverser 107 needs to be determined by the dimensions of the mold carriage 102 when thermally expanded.
  • the reference for feeding the mold 101 by the pusher device 110 is the mold 114 that has been carried out from the carry-in traverser 106, the mold 101 stays on the fixed rail 108 when the mold 101 is cold when the equipment is started.
  • the leading mold 109 in the conveyance mold group 103 is not fed.
  • the leading mold 109 of the conveying mold group 103 staying on the fixed rail 108 that has become insufficiently fed is clamped by a clamping device 117, and a convex portion 118 provided at the lower part of the mold carriage 102 is formed. Insert and push out to a predetermined position. Further, the mold 109 pushes the mold 101 on the carry-out side traverser 107 forward. It is to be noted that derailment due to the first run of the mold 109 (moving to the carry-out side) when the cart of the carry-out side traverser 107 is on the unillustrated destination end side is prevented.
  • the part sandwiched by the sandwiching type clamping device 117 may be used as the formwork truck axle 120.
  • a gap c is generated between the leading mold 109 of the conveying mold group 103 staying on the fixed rail 108 and the pusher-side mold 121.
  • This gap c is adjusted to a minimum dimension at the time of mold thermal expansion.
  • this gap is c + L (see FIG. 15).
  • the “bound end side” refers to a position where the formwork is unloaded by the unloading-side traverser.
  • the mold 101 on the carry-out traverser 107 is moved to the carry-out traverser 107.
  • the formwork carriage holding means 112 mounted on 107 is fed to a predetermined position of the carry-out side traverser 107.
  • the mold 101 is held in that position until it is carried out by a pusher device (not shown) downstream of the carry-out side traverser 107 (see FIG. 16).
  • the formwork carriage holding means 112 has a force to push the roller 112a upward by a spring (not shown) housed in the case 112b from below, and the formwork carriage 102 of the formwork 101 on the carry-out side traverser 107. By pushing up the corner of the convex portion 118, the mold 101 on the carry-out side traverser 107 can be sent to a predetermined position.
  • the formwork carriage holding means 112 may send the formwork 101 in another known configuration.
  • the formwork carriage holding means 112 mounted on the carry-in side traverser 106 transfers the formwork 101 carried from an upstream pusher device (not shown) at the return end of the carry-in side traverser 106 (not shown).
  • the mold 101 is held at that position until it is sent to a predetermined position and carried out by the pusher device 110 (see FIG. 12).
  • the gap c (c + L )
  • the cylinder head 116 of the cushion device 111 is moved to the side where the rod contracts by the distance of d and e. This process is referred to as a re-effective process of the cushion device 111 (see FIGS. 14, 15, and 16).
  • the gap e is a gap between the mold frame 101 on the carry-out side traverser 107 and the cylinder head 116 of the cushion device 111 after re-operation, which is sent to a predetermined position by the mold carriage holding means 112 (FIG. 16).
  • the mold 101 on the carry-out side traverser 107 is unloaded.
  • the pusher device 110 and the cushion device 111 are carried out in a direction perpendicular to the sandwiching feed direction.
  • Time (c + L) + d is moved at a low speed, and it is transported at high speed after detecting that the cylinder head 116 of the cushion device 111 has retracted (specifically, the OFF signal of the cushion head return end detection switch) because the gap has disappeared. Control to do.
  • the number of molds in the transport mold group 103 is large, the inter-frame gap L when the mold 101 is cold becomes very large.
  • a hydraulic cylinder 123 has been adopted for the pusher device 110 and the cushion device 111 as an actuator having a large thrust. Therefore, the cylinder stroke is fixed and the thrust of the hydraulic cylinder 123 is very large.
  • control is performed so that the hydraulic cylinder 123 stops at an arbitrary position in the middle of the stroke of the hydraulic cylinder 123 according to the thermal expansion of the mold carriage 102. Is difficult and sometimes out of control. In the case of not stopping at the midway stop position, there is a concern that the thermally expanded formwork carriage 102 is pushed back and equipment such as the derailment prevention stopper 113 is damaged.
  • the lineup of electric cylinders 23 having a large thrust has become abundant, and the electric cylinders 23 can detect the position of the cylinder head 16 using an encoder or the like. For this reason, the stroke of the electric cylinder 23 of the cushion device 11 is selected according to when the mold 1 is cooled, and is stopped at an arbitrary position in the middle of the stroke of the electric cylinder 23 according to the thermal expansion of the mold carriage 2. Control has become easier.
  • the position of the cylinder head 16 can be detected on the cushion device (cushion cylinder) 11 by an expansion / contraction position recognition means (extraction / contraction position recognition function) such as an encoder.
  • a mold carriage is provided with a clamping device 34 for holding the upstream mold 1 in an arbitrary stop position, and for feeding a short feed mold 1 located on the carry-out traverser 7 on the cushion device 11 side to a predetermined position. It is the point which has the clamping device 17 of the pinching system which positions by pinching the 2 convex part 18.
  • the expansion / contraction position recognition means may be known means such as an encoder, a linear scale, a laser displacement meter, and a porcelain displacement meter.
  • the electric cylinder or hydraulic cylinder with the expansion / contraction position recognition function may include the expansion / contraction position recognition means as a separate body instead of being integrated. That is, expansion / contraction position recognition means that can measure the position of the cylinder head of the electric cylinder may be installed in the carry-out side traverser, for example.
  • the pusher device (pusher cylinder) 10 When the electric cylinder 23 is used for the cushion device 11, the pusher device (pusher cylinder) 10 generally uses the electric cylinder 23 of the same size, but the pusher device 110 using the hydraulic cylinder 123 having a conventional structure is used. Things are also possible. Further, instead of the electric cylinder 23, a hydraulic cylinder with an expansion / contraction position recognition function and a halfway stop function may be used for the cushion device 11.
  • the return end position based on the storage of the effective end position of the cylinder head 16 of the cushion device 11 is the stored effective end position of the previous cycle + the formwork length ⁇ the gap d (see FIG. 10).
  • the mold 1 is placed on a mold carriage 2 having a longer dimension than the mold 1 and conveyed.
  • the conveyance form group 3 arranged in series is conveyed in a state where the form carriages 2 are in contact with each other.
  • Traversers 6 and 7 for loading and unloading the mold 1 one frame at a time in the perpendicular direction are arranged on the loading side 4 and the unloading side 5 of the conveying mold group 3 arranged in series.
  • the formwork 1 on the carry-in traverser (formwork transfer device) 6 is pushed downstream by one frame, and the leading formwork 9 of the transfer formwork group 3 staying on the fixed rail 8 is placed on the carry-out traverser 7. For this reason, the pusher device 10 and the cushion device 11 are arranged opposite to the outside of the conveying mold group 3.
  • Each of the traversers 6 and 7 to be carried in / out has a clamping device 17 for clamping the molds 1 to be loaded, and the downstream side of the carry-in traverser 6 is for preventing reverse movement of the molds 1.
  • a derailment prevention stopper 13 is provided (see FIG. 1).
  • the derailment prevention stopper 13 is lowered when the frame 1 is fed by the pusher device 10 and is raised by a one-frame feed completion signal of the pusher device 10 to prevent the mold 1 from running backward (see FIG. 4).
  • the derailment prevention stopper 13 may have another known configuration.
  • the feed standard of the mold 1 by the pusher device 10 is, for example, the mold 14 carried out from the carry-in side traverser 6 (see FIG. 4).
  • the mold 1 may be used as a feed reference.
  • the cushion device 11 side stays on the fixed rail 8 in order to carry out the mold 1 loaded on the carry-out side traverser 7 from between the conveyance mold group 3 arranged in series and the cushion device 11.
  • a gap d is provided between the leading mold 9 of the conveying mold group 3 and the mold 1 on the carry-out traverser 7, and the effective end of the mold 1 on the carry-out traverser 7 and the cylinder head 16 of the cushion device 11.
  • a gap e is provided between them (see FIG. 9).
  • the leading form 9 of the conveying form group 3 staying on the fixed rail 8 is fixed at the position where it stops without being fed by the clamping device 34 (see FIGS. 6a and 6b).
  • the clamp device 34 has cylinders 32 facing the smooth surfaces 31 on both sides of the mold carriage 2 on which the mold 1 is placed, and presses the tip liner 33 having a smooth shape attached to the cylinder 32 against the smooth surface 31. And fix. In this way, the tip liner 33 of the cylinder 32 is pressed against and fixed to the smooth surfaces 31 on both sides of the formwork carriage 2, so that it can be fixed at an arbitrary position.
  • the pinching type clamping device 17 sandwiches the convex portion 18 provided at the lower part of the mold carriage 2 and pushes it out to a predetermined position.
  • the convex part 18 is not provided in the lower part of the formwork carriage 2, the part sandwiched by the sandwiching type clamping device 17 may be used as the formwork truck axle 20.
  • the clamping device 17 of the sandwiching method mounted on the carry-in side traverser 6 transfers the mold 1 loaded from an upstream pusher device (not shown) at the return end 26 of the carry-in side traverser 6 to a predetermined value of the carry-in side traverser 6.
  • the mold 1 is held at that position until it is fed to the position and carried out by the pusher device 10 (see FIG. 4).
  • the cushion is provided by the distance d + L + e.
  • the cylinder head 16 of the apparatus 11 is moved to the side where the rod contracts. This process is referred to as a re-effecting process of the cushion device 11 (see FIGS. 7, 8, and 9).
  • the gap e is a gap between the mold 1 on the carry-out side traverser 7 sent to a predetermined position by the clamping system 17 and the cylinder head 16 of the cushioning device 11 after reactivation (FIG. 9). reference).
  • the formwork 1 on the carrying-out side traverser 7 is carried out.
  • the side traverser 7 carries out the pusher device 10 and the cushion device 11 in a direction perpendicular to the sandwiching feed direction.
  • the mold frame 1 stays on the fixed rail 8 when the mold 1 is in a low temperature state.
  • the leading mold 9 in the conveying mold group 3 is not fed by the L dimension with respect to the stop position when the mold is hot (see FIG. 7).
  • the present invention by controlling the return end position of the cylinder head 16 of the cushion device 11, the amount of change in length due to the thermal expansion of the mold carriage 2 that occurs when the mold 1 is cold.
  • the influence of the change amount L of 1 frame ⁇ the number of frames mounted on the fixed rail 8 can be eliminated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Casting Devices For Molds (AREA)
  • Actuator (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention porte sur un procédé de transfert et un dispositif de transfert de groupe de coffrages, permettant de maintenir un espace constant entre des coffrages sans être affecté par une dilatation thermique du coffrage. Le procédé de transfert selon l'invention consiste à prendre en sandwich un groupe de coffrages disposé en ligne droite entre un cylindre de poussée (10) et un cylindre d'amortissement (11), et à utiliser le cylindre pour transférer de façon intermittente le groupe de coffrages (3) du pas d'un seul coffrage ou d'une pluralité de coffrages. Un cylindre hydraulique ou cylindre motorisé avec lequel la position d'arrêt sur le côté d'extrémité étendue peut être modifiée arbitrairement et qui est équipé d'une fonction de reconnaissance de position étendue/contractée et d'une fonction de mouvement de suspension, est utilisé comme cylindre d'amortissement (11), éliminant l'impact de la dilatation thermique du coffrage.
PCT/JP2017/005662 2016-05-31 2017-02-16 Procédé de transfert et dispositif de transfert de groupe de coffrages Ceased WO2017208514A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780003423.0A CN108136489A (zh) 2016-05-31 2017-02-16 型箱组的输送方法及输送装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016108164A JP6551306B2 (ja) 2016-05-31 2016-05-31 型枠群の搬送方法及び搬送装置
JP2016-108164 2016-05-31

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WO2017208514A1 true WO2017208514A1 (fr) 2017-12-07

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JP (1) JP6551306B2 (fr)
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148424A (en) * 1976-06-04 1977-12-09 Dansk Ind Syndikat Staging advance apparatus of mold
JP2015174088A (ja) * 2014-03-13 2015-10-05 メタルエンジニアリング株式会社 鋳枠搬送装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148424A (en) * 1976-06-04 1977-12-09 Dansk Ind Syndikat Staging advance apparatus of mold
JP2015174088A (ja) * 2014-03-13 2015-10-05 メタルエンジニアリング株式会社 鋳枠搬送装置

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CN108136489A (zh) 2018-06-08
JP2017213574A (ja) 2017-12-07
JP6551306B2 (ja) 2019-07-31

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